CASA Pilot Glossary

Plain-English definitions of 9 terms from CASR Part 61, the MOS, the AIP and ERSA: licensing, airspace, weather products and navigation for CASA theory exams.

• ARFOR (Area Forecast): A Bureau of Meteorology forecast of expected weather over a defined geographic area of Australian airspace, used for route planning.
• CASR Part 61: The Civil Aviation Safety Regulation governing flight crew licensing in Australia, including licence types, ratings, and endorsement requirements.
• Class D Airspace (Australia): Controlled airspace around a non-major Australian tower-controlled aerodrome, requiring two-way radio contact but not an explicit clearance for VFR traffic.
• CPL (Commercial Pilot Licence): The CASA licence authorizing a pilot to be paid for flying, sitting between the PPL and ATPL in Australia's Part 61 licensing structure.
• ERSA (En Route Supplement Australia): Airservices Australia’s directory of aerodromes and facilities, published as part of the Aeronautical Information Package.
• MOS Schedule 3: The CASA legislative instrument that sets the syllabus and standard for every Part 61 flight crew knowledge exam in Australia.
• NOTAM (Australia): A Notice to Airmen issued by Airservices Australia to alert pilots to a hazard or change not yet reflected on published charts.
• RePL (Remote Pilot Licence): The official CASA certification required to operate unmanned aircraft (drones) commercially in Australia.
• Transition Altitude (Australia): The altitude at and below which Australian aircraft set their altimeter to the local QNH; above it, aircraft use the standard pressure setting.

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